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import React from 'dom-chef';
import cache from 'webext-storage-cache';
import select from 'select-dom';
import * as pageDetect from 'github-url-detection';
import PullRequestIcon from 'octicon/git-pull-request.svg';
import features from '.';
import * as api from '../github-helpers/api';
import getDefaultBranch from '../github-helpers/get-default-branch';
import {buildRepoURL, getRepo} from '../github-helpers';
function getPRUrl(prNumber: number): string {
return buildRepoURL('pull', prNumber, 'files');
}
function getDropdown(prs: number[]): HTMLElement {
// Markup copied from https://primer.style/css/components/dropdown
return (
<details className="ml-2 dropdown details-reset details-overlay d-inline-block flex-self-center">
<summary aria-haspopup="true" className="btn btn-sm">
<PullRequestIcon/> {prs.length} <div className="dropdown-caret"/>
</summary>
<ul className="dropdown-menu dropdown-menu-se">
<div className="dropdown-header">
File touched by PRs
</div>
{prs.map(prNumber => (
<li>
<a className="dropdown-item" href={getPRUrl(prNumber)}>
#{prNumber}
</a>
</li>
))}
</ul>
</details>
);
}
function getSingleButton(prNumber: number, _?: number, prs?: number[]): HTMLElement {
return (
<a
href={getPRUrl(prNumber)}
className={'btn btn-sm btn-outline flex-self-center' + (prs ? ' BtnGroup-item' : '')}
>
<PullRequestIcon/> #{prNumber}
</a>
);
}
/**
@returns prsByFile {"filename1": [10, 3], "filename2": [2]}
*/
const getPrsByFile = cache.function(async (): Promise<Record<string, number[]>> => {
const {repository} = await api.v4(`
repository() {
pullRequests(
first: 25,
states: OPEN,
baseRefName: "${await getDefaultBranch()}",
orderBy: {
field: UPDATED_AT,
direction: DESC
}
) {
nodes {
number
files(first: 100) {
nodes {
path
}
}
}
}
}
`);
const files: Record<string, number[]> = {};
for (const pr of repository.pullRequests.nodes) {
for (const {path} of pr.files.nodes) {
files[path] = files[path] || [];
if (files[path].length < 10) {
files[path].push(pr.number);
}
}
}
return files;
}, {
maxAge: {hours: 2},
staleWhileRevalidate: {days: 9},
cacheKey: () => __filebasename + ':' + getRepo()!.nameWithOwner
});
async function init(): Promise<void> {
// `clipboard-copy` on blob page, `#blob-edit-path` on edit page
const path = select('clipboard-copy, #blob-edit-path')!.getAttribute('value')!;
const {[path]: prs} = await getPrsByFile();
if (!prs) {
return;
}
const [prNumber] = prs; // First one or only one
if (pageDetect.isEditingFile()) {
select('.file')!.after(
<div className="form-warning p-3 mb-3 mx-lg-3">
{
prs.length === 1 ?
<>Careful, PR <a href={getPRUrl(prNumber)}>#{prNumber}</a> is already touching this file</> :
<>
Careful, {prs.length} open PRs are already touching this file
<span className="ml-2 BtnGroup" style={{verticalAlign: '-0.6em'}}>
{prs.map(getSingleButton)}
</span>
</>
}
</div>
);
return;
}
if (prs.length > 1) {
select('.breadcrumb')!.before(getDropdown(prs));
return;
}
const link = getSingleButton(prNumber);
link.classList.add('ml-2', 'tooltipped', 'tooltipped-ne');
link.setAttribute('aria-label', `This file is touched by PR #${prNumber}`);
select('.breadcrumb')!.before(link);
}
void features.add(__filebasename, {
include: [
pageDetect.isEditingFile,
pageDetect.isSingleFile
],
init
});
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